1.
Bahar Uyar Düldül. Extended Darboux frame field in Minkowski space-time $\mathbb{E}_1^4$. Malaya J. Mat. [Internet]. 2018 Jul. 1 [cited 2024 Nov. 24];6(03):473-7. Available from: https://www.malayajournal.org/index.php/mjm/article/view/823